IC900.2
Frequency Expansion Modifications for the ICOM IC-900
All changes are made in the control head.
Diodes are arranged in a 8x4 array: A-H, 1-4.
As shipped from the factory, the diodes are arranged thusly:
X = diode in place
____________________________________
| | X | X | | | | | X | 4
|---|---|---|---|---|---|---|---|---
| | X | | X | | | | | 3
|---|---|---|---|---|---|---|---|---
| | X | | | | X | | X | 2
|---|---|---|---|---|---|---|---|---
| | | | | | | | X | 1
|---|---|---|---|---|---|---|---|---
| A | B | C | D | E | F | G | H |
To add receive coverage on 6 meter and 70 cm bands only:
C=cut diode, or remove
____________________________________
| | C | X | | | | | X | 4
|---|---|---|---|---|---|---|---|---
| | X | | C | | | | | 3
|---|---|---|---|---|---|---|---|---
| | X | | | | X | | X | 2
|---|---|---|---|---|---|---|---|---
| | | | | | | | X | 1
|---|---|---|---|---|---|---|---|---
| A | B | C | D | E | F | G | H |
CONTINUED IN FILE IC900.3
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